Chair.



H. SAYLES.

CHAIR.

APPLICATION FILED JUNE25, 1918.

Patented Dec. 17, 1918.

W/TNESSES A TTOR/VEYS HENRY SAYLES, 0F NEW YORK, N. Y.

CHAIR.

Specification of Letters Patent.

Application led .T une 25, 1918. Serial No. 241,772.

To all whom t may concern: Be it known that I, HENRY SAYLES, a citizen of the United States, and a resident of the city of New York, borough of Manhat-l tan, in the county and State of New York, have invented a new and Improved Chair, of which the following is a full, clear, and exact description.

This invention relates to an improved construction of chair and has for an object the provision of an improved arrangement of spring means for acting in the double capacity of cushion and elevating means for assisting in causing a person to rise from the chair.

Another object of the invention is to provide a chair with a swinging bottom or seat section with a spring for normally holding one end of the bottom elevated, and means for limiting the elevating action so that'the parts will be in proper condition for receiving a person. l

In the accompanying drawing:

Figure l is a front rview of the chair dis- Y closing an embodiment of the invention.

p Fig. 2 isa side view of the chair shown in Fig. l, certain parts being shown in section for better illustrating the structure.

Fig. 3 is a front view of a slightly modied form of a chair wherein a plurality of springs are used.

ig. 4 is a top plan viewA of the chair shown in Fig. 2.

Fig. 5 is a section through Fig. 4 approximately on line 5 5, same being on an enlarged scale:

Referring to the accompanying drawing by numerals, 1 indicates an ordinary chair having a back 2 and a seat 3, said seat having a central section or seat member 4 pivotally mounted on a rod 5. It is, of course,

understood that the seat member 4 could be pivotally supported in some other manner without departing from the spirit of the inv vention, but in such a way that the front would be properly supported while the back is normally supported by a spring 6 acting on pins 7 and 8, which pins are carried by the guiding tubes '9y and 10 respectively.

These tubes telescopically fit as shown in Fig. 2 so that when any one sits on the seat member or section 4 it will be moved downwardly to the position shown in Fig. 5 if the person is of proper weight to compress spring 6. In the downward position the rear end of the section 4 is supported by a rod l5 or other suitable support connected with the firm part of the seat 3. A cable or limiting member 11 is connected at 12 to the section 4 and to the seat 3 at 13 and 14. This flexible member may be a cable, chain, or any flexible device which will limit the upward movement of section 4. In order to prevent the sectionv or seat member 4 from moving upwardlybolts l5 and 16 are connected to the opposite parts of the seat 3 and sliding-ly it into the keepers 17 and 18 as shown in Fig. 5.

By this construction and arrangement the spring 6 may be utilized for assisting 'a person in getting up or may be dispensed with by using the bolts l5 and 16, which bolts may be thrown out of operation at any time so as to cause the spring to again actin its proper capacity. The upper end of the tube 6 preferably lits into a socket in the section 4 while the lower Vend of tube 5 may rest against the bracing pin 19 of chair 1 and be held in proper position by an encircling strap 20. Ordinarily the section 4 is cut out as shown in Fig. 4 from the bottom of the chair, but if desired, during the manufacture of a new chair member 4 could extend from the front entirely to the rear` or any desired distance back as may be desired.

In order to take care of persons who are rather heavy or very heavy, two or more' springstructures 21 and 22 may be provided as shown in Fig. 3, which act in the same manner as the spring structure shown in Fig. 2, except that a number of springs and tubes are provided for Vtaking care of the extra weight. In order to secure a proper resiliency and an appreciable movement of the rear part of the section 4, the spring 6 must be comparatively long and in ordergto prevent said spring from buckling or bowing to one side the tubes 9 and 10 are arranged as shown in Fig. 2 so as to guide the spring without limiting its resilient action.

What I claim is: y

l. A chair comprising a bottom having a movable section, means for pivotally mounting the front part of said movable section on said bottom, means at the rear of said bottom for supporting rigidly the rear of said swinging section when in a lowered position, a slightly swinging tube having one end positioned in the rear of said swinging section, a second tube pivotally mounted on said chair near the lower part thereof, said second tubular section i'itting into the first mentioned tubular section and acting to hold the rear Patented Dec. 17, 1918.l

of eeicl swinging section normally in en elevetecl Jposition and means for limiting; the upward swinging movement of said. swinging section.

2, ln o, chair of the character cleseriloeri e swinging bottom member arranged. es part o the seat of a chair, e resilient structure for swinging seid bottoni member to e pre oetermined upper position9 and Ineens for locking the swinging bottom member in e lowered position against the action of seid resilient structure 3, e chair of the character describedy e sw ing 1oottorn structure pivotellj/ mounted neer the front of the onair e 4coiled spring acting against the iower part of the chair and against the ree enel of the bottom structure for normally holding the bottoni structure at e predetermined angle, a pair of telescoping tubes surrounding seid spring pre- Venting)n buckling thereof, said spring being e spiral spring of considerable length in orfler to produce en appreciable movement of Seial bottom structure9 means for limiting the movement of said bottom structure under the action of said spring, anol means for looking; the bottom structure in e lowered positiono 

